Hydraulically controlled torque coupling device

Details Hydraulically controlled torque coupling device Hydraulically controlled torque coupling device

2004-02-17

2008-08-19

Bonck, Rodney H (Department: 3681)

192 clutches and power-stop control

Clutches

Fluent material

C464S027000

Reexamination Certificate

active

07413066

ABSTRACT:
A hydraulically actuated torque coupling device is provided for transmitting a drive torque from an input to at least one output. The torque coupling device comprises a rotatable hydraulic manifold block having a plurality of cylinder bores defined therein, a multi-lobed cam ring rotatable coaxially with the manifold block, a plurality of pistons each disposed within corresponding one of the plurality of cylinder bores in the manifold block for reciprocating therewithin upon relative rotational movement between the manifold block and the cam ring and defining a plurality of pressure chambers within the corresponding cylinder bores, and restrictor device in fluid communication with each of the plurality of pressure chambers such that the restrictor device controls a discharge pressure attainable within each of the plurality of pressure chambers during discharge strokes. Each of the plurality of pistons rotably engages the at least one cam ring at distal ends thereof.

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